Sifter.



O. F. MATTINGLY.

SIFTER.

APPLIOATIONJILBD JULY 13, 1012.

1 89,777 Patented Mar. 10, 1914.

wi/lmeooeo l law wk!) t l M eaten/mu striking the screen will gravitatethereon to OWEN F. MAT'IIN'GLY, OF "WASHINGTON, DISTRICT OF COLUMBIA.

SIFT'EIQ.

Specification of Letters Patent.

Patented Mar. 10, 19114.

Application filed July 13, 1912. seriaino. 709,228.

To all whom it may concern Be it known that 1 OWEN FRANKLIN Mivring is aspecification An ob ect or the invention is t provide a sitter forsifting or screening; materials such: as sand, gravel, cracked stone,ashes and other like materials.

The invention comprehends among other features a device which can beconveniently transported from one place to another and in which theparts C(HTIPOSlllg the sitter can be readily removed for the purpose ofcleaning the s' required for sitting dil'l'crcnt materials.

} A further embodiment of the invention resides in means whereby theinclination of the screen can be varied to suit the particular materialthat is to he sifted and winch upon a discharge opening, while the linerportions of the material. Will pass through the screen into a suitablereceptacle provided therefor.

In the further disclosure of the invention reference is to be had to theaccompanying drawings, constituting a part of this specification, inwhich similar characters of ref erence denote corresponding parts in allthe views, and in which:

Figure 1 is a side elevation. Fig. is a vertical loinjgitui'liiualsectional view; Fl 3 is a front clevat'iom and Fig. 4 is a rert1caltransverse sectional. view taken on the line el -4t in 'l ig. 2.

Referring more gmrticularly to the views use is made of a incliruiling abody 11 terminating in front and rear legs 12. ld'ounted to swing onboth sets of legs 12 are supporting members 14:, having rollers 15journaled thereon, cotter pins to being provided to pass throughregistrablc apertures in the front legs 12 and supporting members 14 tosecure the supporting mem bers in the vertical plane of the front legsas shown, it being readily seen that it dosirable the cotter pins 16 canbe removed from engagement with the supporting members 1 1 and the saidmembers can then be swung into an inoperative position so that eitherthe front or rear legs 12 made to repose on the ground, thus tilting thestand "tor and parts substituted when of slots 17, ilnd a casing 18 isremovahly mounted within the stand 10, a horizontally arranged shaft15), having a forlcliln agitator 20 thereon, being journalcd on the casing 13 with the shaft 19 arranged in the slots 17 when the casing 18 ismounted within the stand so that the said shaft will readily support thecasing, as shown in the views. The shaft 10 has a crank or handleportion 21 arranged oxteriorly of the casing 18 and stand 10, for thepurpose of operating the agitator 20 and renn'uably mounted to repose onledges 22 on the inner face of the sides of the casinglS is a screen 23,the said screen constituting a cover for the cas ing 18. The screen isremovably mounted so that screens of course or line mesh may be used forsitting coarse or fine materials. When mounted in the casing asmentioned, the said screen will aline with a discharge chute 2lprojectcd from the front of the stand 10, a closure beinggravitationally mounted on the casing 18 to normally close the upper endof the discharge chute. A chain 26 has connection with a staple '27sccured to the closure and the said chain passes loosely through astaple 28 on the front of the casing 18, a hook 29 having connectionwith the free end of the chain and discharge chute 30, a closure 31,having an integral handle 32. being slidably mounted on the upper end ofthe discharge chute 30 to close the same. A hood 32 is provided forremovable engagementwith the stand 10 and at the rear end thereof thereis mounted to swing a closure 33 drovided to normally closet c entranceto the stand 10 and casing 18, a balllc plate 34 of a fork-likeconstruction, being rigidly secured to an inner face of one of the sidesof the hood 32 topartially restrict the entrance closed by the closureThe rear part 32 of the hood is hinged or pivoted thereto, as at 32, sothat it may be swung open for access to the cusing without removing thehood.

In the, use of the device described, the entire structure, firstconveyed to the place of operation,. a suitable handle 35 being mountedto swing on the stand 10, in order that ths ope rstor can readily pullthe sift-e1 over the grs und or floor. The material is be sifted is nowfed into the sifier by pass ing the same through the) entrance normallyclosed by fllfi closure the baffie plate 34% being pmvidefi to prevent00 much mate rial from entering the stand in hulk. T1

material will now slide down. the i cl'nel screen 23 and the iinsr partsof the msieriai will sift through the screen. while thesosl'se' andlarger pmilcles centn'me down the screen v .and pass outwardly"h2J'011gh the chscrmrge chute 24. v If any 010g mg of material should.occur on the semen 23, the agiizmfim: is set in motion by the operatoris ful izex hs advancementof the material 0Wn the. screen, and by simplyiilting the hood section 32' open the feed 01 the material maybeinspected at any time and an impiement 111-.

serted if necessary to loosen. up clogged mass of material which cannotbe freely loosened by means of the agitator. The finer particlesof thematerial will thus be rsceivecz in the casin 18 and can be readilyremoved; therefwm g)" opening the discharge chute 30, normally closet bythe closure:

H the inciinasion of the; is nut sufiicient for the advance-malt of he 2ate rial along the screen, or'is E00 r201 such advancement, the from 01'supporting;

members 14 can be. wish} 7 swung into maaperstive posiiiom' as meniianedher-esoifm's thus slit-mg the ssnfl 1G mrwssdiy or rear- V Wax-{21y andsubstsntiali increasing or da creasing the inclinssion 01' tins screw.scams?- ing to the character sf the masm'isi. Whethsr 510W 027 fss'il fefiaing. I

My sific eis is prsiembiy the Walls c'f ths stand 10, casing; 13 and1:10am

32 being made of sham; metal 0?; 2, gaivzmisednature. It will be unciecs'osd hswsvm', that I do nos limit myself is th s psr'uicuisrconsfiruction disclosed here n and that the scope of the invention i(leased by she zap pended claims. 1

Having thus ciescribsd ths invsmiem is claimed as new irz 1 A sifterwmyrisimg in ssm'i'ztmtisrs mass??? inclosing stand structure hsvm mgss, sliftsr cssmg losss. s -1d s'i'rsctme and hi shs fi ops lsposeci 1nssldl ed U U31 with me s! t spellings in 531d stand and: en mg themtenor 01 sand; stand is hold same! as. against Esters siao-vsmem in.said. sitm a g'sumsisd mountsi ssifl uss'sd sis m casing, .131 2 as-Q1"shm in operable relsiic-nwi screen, and means f0 ings is scausie said?s'isi'iimll g as 3.6 .-ribs6%@ In a. siftez: the. omhiy. m? 1 casingrememhiy t a, n

disci'large chnie Sta-11185., dlschszs s on the casing, is an en casing:sn Mining Wish the (ii chuis 0f stanc i, closures for the dischargechases, a b.0061 on the stand fissure the has-:3 adapted to nmrmafiysins-e sn enqmncs t0 the casing, s is msisrl on said. casing gmg westand s-o- SUTQI'"..

117 cisse 1 openings and 1 porting the 1. sand s'ianrl a screen m

